Thats a great encounter set up. The anvils look great as do the shadows. The embers in the forges look a little tiled as the pattern repeats itself quite a lot. Lighting is one of those "black magic" things. I can spend hours working on a lighting effect only to decide that I don't like it. I can give you a couple of tips though. When I need something to be really dark with a dramatic light effect I use what I call a "dark layer" usually a layer of black set to either "overlay" or "soft light" I mess with the opacity until I get what I'm looking for. Then you can make a layer of bright light (in this case over your forges) and then with a big soft eraser with a fuzzy brush erase over the forges to reveal the light source. A blur on both layers helps blend it together. This looks like it's going to be a lot of fun to follow.